The Mets’ June cruise has not only made them relevant in the National League pennant races, but subsequently also at the July 31 trade deadline.

LEE: July's big fish.

With management believing this is no fluke and the Mets will continue to play alert, aggressive baseball, there are serious discussions not whether they should trade, but whom to trade for – and just as important, whom they should not trade.

Their interest, despite this remarkable run by the rotation, must remain pitching. First rotation; second bullpen.

There is a sense of calm derived from how well Johan Santana and Mike Pelfrey have pitched, and a feeling of optimism with Jon Niese’s run since coming off the disabled list.

Just because Roy Oswalt told a friend he would accept a trade to the Mets doesn’t mean he’s in Manhattan on the off-day looking at apartments.

OSWALT: Won't come cheap.

Depending on what “friend’’ you talk to, Oswalt said he’d also accept trades to Philadelphia, St. Louis, the Yankees, Texas and Washington Nationals. However, if it means getting out of Houston, a chance at the playoffs and perhaps an extension, the list of places suddenly favorable to Oswalt could grow.

The Mets have been getting sterling pitching from rotation fill-ins RA Dickey and Hisanori Takahashi – together they are 9-2, but Takahashi is only 2-1 as a starter – but that’s not to say all their pitching concerns have been answered.

We don’t know how long this run will last as neither Dickey nor Takahashi are proven over the long haul. We don’t know that about Jon Niese, either, and John Maine continues to throw 88.

If the Mets are to get Oswalt, they should strike now while it is early. The closer to the deadline, the more the Astros will be asking.